Monty is just beginning the heart cough, I believe and is hopefully going to the vets on Thursday (I like to see a particular one who only does this day).
Izzy's (he had mvd) cough started just like this and as he had been in contact with kc, I assumed it was this for a while, as he did the kc type gag. I wasn't sure of Monty's , at first, as he licks his coat and rude bits , first thing, and having a very long coat, has always managed to swallow a little hair , now and then.
However, now he coughs every morning. Just one cough .Most times just the gag, but sometimes preceded by a soun dlike breath being drawn in , over the chest. He sometimes coughs on first rising and sometimes he will get up, go out for his 5am wee and then cough between then and my getting up.
In the beginning, most dogs with heart coughs do so in a morning and at night, but eventually the coughing occurs during the day and in some cases (not until very late on in Izzy's case ) after a little exertion or while eating or drinking.
Some cough because of fluid buildup, but a few vets told me that this wan't the case for Izzy, as he had very little fluid on his chest, until his last 4 months.
From being diagnosed with an extreme murmur (ie when he was coughing-we'd know about the lesser murmur for a couple of years ), he managed over two years on medication.
Barbara, Monty, Joly and Teddy.